Abstract
Association between copepods and bacteria was observed in many scanning electron micrographs. Particular sites on the copepods were selectively colonized by bacteria; the joints of segments and legs, swimming legs and depressed parts of the body surface were found to be densely covered with bacteria. In comparison, bacterial attachment to copepod skeletons in fecal pellets excreted by chaetognaths was not selective; bacteria were sparsely found all over the copepod. Between 9 to 30% of copepods in Tokyo Bay waters had attached bacteria in January and April 1983.
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Colwell, R. R., J. Kaper, R. Seidler, M. J. Voll, L. A. McNicol, S. Gargas, H. Lockman, D. Maneval, E. Remmers, S. W. Joseph, H. Bradford, N. Roberts, I. Huq and A. Huq: Isolation of 01 and non-01 Vibrio cholerae from estuaries and brackish water environments. In: Proceedings of the Fifteenth U.S.-Japan Cooperative Medical Science Program Joint Conference on Cholera, pp 44–56. Bethesda, MD: US Department of Health, Education and Welfare 1980
Fletcher, M. and K. C. Marshall: Are solid surface of ecological significance to aquatic bacteria? In: Advances in microbial ecology, Vol. 6. pp 199–236. Ed. by K. C. Marshall. New York and London: Plenum Press 1982
Fukami, K., U. Simidu and N. Taga: Distribution of heterotrophic bacteria in relation to the concentration of particulate organic matter in seawater. Can. J. Microbiol. 29, 570–575 (1983)
Hickman, C. P.: Biology of the invertebrates, 673 pp. St. Louis, MO: C.V. Mosby Co. 1967
Hobbie, J. E., O. Holm-Hansen, T. T. Packard, L. R. Pomeroy, R. W. Sheldon, J. P. Thomas and W. J. Wiebe: A study of the distribution and activity of microorganisms in ocean water. Limnol. Oceanogr. 17, 544–555 (1972)
Huq, A., E. Small, P. A. West, M. I. Huq, R. Rahman and R. R. Colwell: Ecological relationships between Vibrio cholerae and planktonic crustacean copepods. Appl. environ. Microbiol. 45, 275–283 (1983)
Kaneko, T. and R. R. Colwell: Adsorption of Vibrio parahaemolyticus onto chitin and copepods. Appl. Microbiol. 29, 269–274 (1975)
Nagasawa, S.: Laboratory feeding and egg production in the chaetognath Sagitta crassa Tokioka. J. exp. mar. Biol. Ecol. 76, 51–65 (1984)
Nagasawa, S., U. Simidu and T. Nemato: Bacterial invasion of chaetognaths under laboratory and natural conditions. J. oceanogr. Soc. Japan, 40, 327–333 (1984)
Nagasawa, S. and T. Nemoto: X-diseases in the chaetognath Sagitta crassa. Helgoländer Meeresunters. 37, 139–148 (1984)
Simidu, U., K. Ashino and E. Kaneko: Bacterial flora of phyto-and zooplankton in the inshore water of Japan. Can. J. Microbiol. 17, 1157–1160 (1971)
Sochard, M. R., D. F. Wilson, B. Austin and R. R. Colwell: Bacteria associated with the surface and gut of marine copepods. Appl. environ. Microbiol. 37, 750–759 (1979)
Wood, E. J. F.: Marine microbial ecology, 243 pp. London: Chapman and Hall Ltd. 1965
ZoBell, C. E.: The effect of solid surfaces upon bacterial activity. J. Bacteriol. 46, 39–56 (1943)
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Communicated by M. Anraku, Hiroshima
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Nagasawa, S., Simidu, U. & Nemoto, T. Scanning electron microscopy investigation of bacterial colonization of the marine copepod Acartia clausi . Marine Biology 87, 61–66 (1985). https://doi.org/10.1007/BF00397006
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DOI: https://doi.org/10.1007/BF00397006